Ephedrine

Figure: Capillary chromatogram of ephedrine extract

Experimental conditions:

Instrument: TriSep-2010 GV CEC system with a 0-30 kV high voltage power supply, a high speed scanning UV detector, a solvent delivery system and HW system software;
Column: 200 mm×100μm I.D. capillary packed with 3μm C18;
Mobile phase: 0.5% Sodium lauryl sulphate buffer in 46% (V/V) Acetonitrile (pH = 2.7);
Applied voltage: -8.0 kV;
Injection volume: 20 nl;
Detector wavelength: 254 nm;
Peaks: 1. Ephedrine